5.8 Timing Question HELP!! - Ford Truck Enthusiasts Forums



1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

5.8 Timing Question HELP!!

Reply
 
 
 
LinkBack Thread Tools Search this Thread
  #1  
Old 09-11-2011, 01:03 AM
bcorg bcorg is offline
Freshman User
Thread Starter
 
Join Date: May 2006
Posts: 25
bcorg is starting off with a positive reputation.
5.8 Timing Question HELP!!

I have a 1990 f250 5.8 4X4 that I am getting close to being a daily driver, thanks to the help and advice from this forum. The truck runs very well but after being warmed up and driven a few miles it cranks over hard, almost like a near dead battery. (Battery is brand new.) My search on this forum suggests that my ignition timing might be too far advanced. My Chilton manual seems to indicate that I have the TFI-IV ignition, since it doesn't have a vacuum line to the distributor, and Chilton states that "no ignition timing adjustment is possible and none should be attempted". Do I really have a timing issue and if so, how do I fix it? Thank you in advance for any help!!
Reply With Quote
  #2  
Old 09-11-2011, 01:18 AM
timbersteel's Avatar
timbersteel timbersteel is online now
Postmaster
 
Join Date: Mar 2005
Location: Mexico, Missouri
Posts: 3,492
timbersteel has a good reputation on FTE.timbersteel has a good reputation on FTE.
Yes you do have a TFI ignition system, but...there is a base tiing that must be achieved. Using a timing light, remove the Spout connector and verify @ the timing pointer that the base timing is 10 degrees BTDC. After verifing base timing, plug the Spout connector back in and verify that it advances. Reading your post, I'm more inclined ot think that perhaps the Ignition coil is to blame. Easy check for this is to let the truck sit several hours to cool down, then use a hair dryer or another means of heating the coil up. Once you have got it warm (Not melted), try to start the truck as you have in the past. Is it hard ot start? If so, the coil is most likely on it's way out and it's far better to replace now, rather than in 18 inches of snow like I had mine go out and couldn't get it figured out, except for your idea of a Dead battery.

Also, you TFI module is located on the distributor itself. These are known to fail due to the amout of stress they endure from the vibration, heat and other factors putting them to the extreme due to the location. Ford revised the TFI module to be located on the Driver side Fenderwell with a large aluminium heatsink. Also, try the hairdryer trick with the TFI module "IF" your diagnosis leads you there, ruling out the coil as the culprit.
Reply With Quote
  #3  
Old 09-11-2011, 01:25 AM
bcorg bcorg is offline
Freshman User
Thread Starter
 
Join Date: May 2006
Posts: 25
bcorg is starting off with a positive reputation.
Thankyou timbersteel!!! I will check intial timing first. Is the spout connecter the plug on the distributor or somewhere else? I wouldn't think it was the distributor plug but I'm fairly new to Fords. Thank you
Reply With Quote
  #4  
Old 09-11-2011, 01:33 AM
timbersteel's Avatar
timbersteel timbersteel is online now
Postmaster
 
Join Date: Mar 2005
Location: Mexico, Missouri
Posts: 3,492
timbersteel has a good reputation on FTE.timbersteel has a good reputation on FTE.
On the dizzy-mounted TFI, I believe it located close to the distributor, but I haven't a system like yours to take a pic. My '90 rebuild is identical to yours, but the harness isn't with me right now. RLA2005, maybe Subford has a pic of it, (I've seen it here several times, try searching for Spout Connector, Subford) but it is a grey Spout connector and it may be wrapped in black electrical fabric tape or if someone has accessed it, it will or should be Grey in color.
Reply With Quote
  #5  
Old 09-11-2011, 01:40 AM
rla2005's Avatar
rla2005 rla2005 is online now
Post Fiend
 
Join Date: Oct 2005
Location: Illinois
Posts: 12,130
rla2005 has much to be proud ofrla2005 has much to be proud ofrla2005 has much to be proud ofrla2005 has much to be proud ofrla2005 has much to be proud ofrla2005 has much to be proud ofrla2005 has much to be proud ofrla2005 has much to be proud ofrla2005 has much to be proud of
Use this for distributor mounted TFI (aka ICM) modules:


courtesy of FordFuelInjection.com

The entire procedure: Ford Fuel Injection » Setting the timing
Reply With Quote
  #6  
Old 09-11-2011, 01:44 AM
timbersteel's Avatar
timbersteel timbersteel is online now
Postmaster
 
Join Date: Mar 2005
Location: Mexico, Missouri
Posts: 3,492
timbersteel has a good reputation on FTE.timbersteel has a good reputation on FTE.
Wow! I didn't think you would be up this late RLA? LOL!

I also included this link showing a pic, courtesy of Subford. RLA, my '90, 302, hasn't got the Spout connector you have shown above, it was just as both of my '92's, 300 and 302.

http://www.ford-trucks.com/forums/10...-question.html

I completely forgot to insert the link earlier...Brain has completely quit functioning @ 1 a.m. Thanks for the diagram RLA2005!

Last edited by timbersteel; 09-11-2011 at 01:53 AM. Reason: Completely FORGOT to add the link!!!
Reply With Quote
  #7  
Old 09-11-2011, 01:50 AM
rla2005's Avatar
rla2005 rla2005 is online now
Post Fiend
 
Join Date: Oct 2005
Location: Illinois
Posts: 12,130
rla2005 has much to be proud ofrla2005 has much to be proud ofrla2005 has much to be proud ofrla2005 has much to be proud ofrla2005 has much to be proud ofrla2005 has much to be proud ofrla2005 has much to be proud ofrla2005 has much to be proud ofrla2005 has much to be proud of
Here is a line drawing of the remote TFI and spout:

courtesy of FordFuelInjection.com

A different pic of a SPOUT for a distributor mounted TFI:
Reply With Quote
  #8  
Old 09-11-2011, 01:54 AM
rla2005's Avatar
rla2005 rla2005 is online now
Post Fiend
 
Join Date: Oct 2005
Location: Illinois
Posts: 12,130
rla2005 has much to be proud ofrla2005 has much to be proud ofrla2005 has much to be proud ofrla2005 has much to be proud ofrla2005 has much to be proud ofrla2005 has much to be proud ofrla2005 has much to be proud ofrla2005 has much to be proud ofrla2005 has much to be proud of
Quote:
Originally Posted by timbersteel View Post
Wow! I didn't think you would be up this late RLA? LOL!

I also included this link showing a pic, courtesy of Subford. RLA, my '90, 302, hasn't got the Spout connector you have shown above, it was just as both of my '92's, 300 and 302.

http://www.ford-trucks.com/forums/10...-question.html

I completely forgot to insert the link earlier...Brain has completely quit functioning @ 1 a.m. Thanks for the diagram RLA2005!
Insomniac theater.....
Reply With Quote
  #9  
Old 09-11-2011, 01:55 AM
bcorg bcorg is offline
Freshman User
Thread Starter
 
Join Date: May 2006
Posts: 25
bcorg is starting off with a positive reputation.
Fantastic folks!!!! Thank you very much!!!! I'll start by checking timing and then do the coil test. I'm close to having this truck ready for a daily driver I can trust. Thanks again!!!!
Reply With Quote
  #10  
Old 09-11-2011, 01:56 AM
timbersteel's Avatar
timbersteel timbersteel is online now
Postmaster
 
Join Date: Mar 2005
Location: Mexico, Missouri
Posts: 3,492
timbersteel has a good reputation on FTE.timbersteel has a good reputation on FTE.
LOL!

Thanks for the pics RLA! I knew that you and Subford had them and the latter one is of mine. Gonna keep this saved in my fav's and save the picture for future reference with courtesy calls for both of you.
Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
In need of a Chilton or Hayes Manual CD Freddie Murphy 1987 - 1996 F150 & Larger F-Series Trucks 1 07-07-2016 05:36 PM
Newbie with a 63 and QUESTIONS schweinhaus 1961 - 1966 F-100 & Larger F-Series Trucks 10 03-28-2015 08:01 AM
Replacing Coil Connector - question... 77beater150 1973 - 1979 F-100 & Larger F-Series Trucks 2 02-25-2014 09:47 PM
1991 F-150 XLT Lariat 4X4 Chilton or Better Freddie Murphy 1973 - 1979 F-100 & Larger F-Series Trucks 2 11-25-2012 10:15 AM
'99 Expy Charging problem THUNDERBOLT5150 Expedition & Navigator 5 04-28-2009 11:34 AM


Go Back   Ford Truck Enthusiasts Forums >

Tags
1990, 29, 49, 58, 96, bronco, connec, connector, distributor, f150, ford, pickup, pointer, ranger, set, spout, ter, timing, timming

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Forum Jump


All times are GMT -5. The time now is 05:07 PM.


This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. Ford® is a registered trademark of the Ford Motor Company.